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worried about compression check?

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Old 26-07-2009, 08:02 PM
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Stu @ Claims Care Centre
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i dont know if its to do with timing but i have a low comp cossie engine which has BD10 inlet and BD14 exhaust cam but there timed up to standard marks on vernier. the car is running a bit lump but i think its because the chip is writted for BD10 exhaust and inlet. would this also cause it to massivly overfuel??
done a compression check today 3 were 110psi 1 was 105psi
is this right?
Old 26-07-2009, 08:14 PM
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Martin Hadland
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Originally Posted by Stu @ Claims Care Centre
i dont know if its to do with timing but i have a low comp cossie engine which has BD10 inlet and BD14 exhaust cam but there timed up to standard marks on vernier. the car is running a bit lump but i think its because the chip is writted for BD10 exhaust and inlet. would this also cause it to massivly overfuel??
done a compression check today 3 were 110psi 1 was 105psi
is this right?
I would place the BD14 on the inlet side and fit a std ex cam rather than what you have right now. The comp results are not too bad, they sound low but it depends on all sorts as too what figures you achieve..
Old 26-07-2009, 08:38 PM
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Stu @ Claims Care Centre
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without soudning thick i can just put a bd14 in the inlet side can i when its a exhaust one?
i have a std cam here tbh that can go into exhaust
Old 28-07-2009, 10:54 AM
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tabetha
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Keep the std exhaust cam and put the 14 or 15 in the inlet.
Compression is fine, you worry too much, and the astra still stinks of petrol!!
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Old 28-07-2009, 11:38 AM
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Providing they are all about the same is what matters I think, rather than the actual figures.
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